US 7,542,432 B2
Resource matched topology database synchronization in communications networks having topology state routing protocols
Carl Rajsic, Nepean (Canada)
Assigned to Alcatel Lucent, Paris (France)
Filed on Oct. 27, 2005, as Appl. No. 11/259,167.
Prior Publication US 2007/0097880 A1, May 03, 2007
Int. Cl. H04L 12/28 (2006.01)
U.S. Cl. 370—254  [370/408] 30 Claims
OG exemplary drawing
 
1. A method for selecting a neighboring node to synchronize network topology database information with a network node from among a plurality of neighboring nodes coupled to the network node in a network, the method comprising:
receiving, from each of the neighboring nodes, an identifier selected from a group consisting of a unique value, an Internet Protocol (IP) address, an Asynchronous Transfer Mode (ATM) address, and a node identification (ID) number, and an indication as to whether synchronization resources have been assigned to the network node;
comparing, for each of the neighboring nodes, the identifier of the neighboring node with identifiers of other neighboring nodes to select at least one neighboring node having an identifier with an extreme value;
assigning synchronization resources to the at least one selected neighboring node; and
synchronizing the network node with the at least one selected neighboring node after assigning synchronization resources.